Lucifer's Hammer The trade paper re-launch of a classic sci-fi bestseller from the authors of the acclaimed alien invasion epic "FootFall". For millionaire Tim Hamner, the comet he helped discover is a ticket to immortality. For filmmaker Harvey Randall, it's a chance to redeem a flagging career. And for astronauts John Baker and Rick Delanty, it's a second chance for glory in outer space.